Here at work, I'm stuck in a damn windowless cube, so I can't use my unit here, so I stream online. At home, I usually stream as well, since I'm too lazy to go back to the car and get the unit. I had to station my antenna outside in order to get a decent reception, because of the way my condo faces.
I believe they are trying to build a dedicated stream just for Howard 100 and 101, because their current system probably isn't capable of the volume necessary to accomodiate all the new subscribers.
http://www.sirius.com/pdf/manuals/sportster_boombox.pdf
Usage manual for the sportster boombox.